Thread measuring gauges. Boundary thread rings - not go side with the diameter from 1 up to 100 mm. Metric thread
NORM herausgegeben am 1.12.1954
Designation standards: STN 254125
Classification mark: 254125
Catalog number: 56121
Publication date standards: 1.12.1954
The number of pages: 7
Approximate weight : 21 g (0.05 lbs)
Country: Slovak technical standard
Kategorie: Technische Normen STN